{"product_id":"wnseu-braided-an6-dual-feed-carb-fuel-line-for-holley-4150-dominator-7-8-20-stainless-braid-vacuum-port","title":"WnSEu Braided AN6 Dual-Feed Carb Fuel Line for Holley 4150\/Dominator (7\/8\"-20) Stainless Braid \u0026 Vacuum Port","description":"\u003cp\u003e\u003cstrong\u003eWnSEu Braided AN6 Dual Feed Carb Fuel Line is a stainless-steel–braided dual-feed hose assembly engineered to deliver reliable fuel supply and vacuum monitoring for Holley 4150\/Dominator carburetors.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis braided AN6 dual-feed carb fuel line is built to replace or upgrade the dual inlet plumbing for Holley 4150 Series\/Dominator carburetors. It combines stainless-steel braid, rubber and nylon layers with machined aluminum fittings and an integrated vacuum\/pressure gauge feed to minimize leaks, resist abrasion, and bring a finished look under the hood. The assembly fits the 7\/8\"-20 thread commonly used on Holley Dominator 4150-style carbs and includes an extra connector for flexible routing and easier installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this braided dual-feed line improve fuel delivery for a Holley 4150?\u003c\/h3\u003e\n\u003cp\u003eThe dual-feed design supplies fuel to both sides of a Holley 4150 carburetor, supporting even flow and reducing the risk of starvation under load. The AN6 fittings provide a secure seal and the stainless braid resists chafing and heat, preserving hose integrity over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-feed layout ensures balanced inlet pressure to both fuel bowls\u003c\/li\u003e\n  \u003cli\u003eAN6 aluminum fittings match common performance carb plumbing\u003c\/li\u003e\n  \u003cli\u003eStainless-steel braid protects against abrasion and heat exposure\u003c\/li\u003e\n  \u003cli\u003eIntegrated vacuum port enables monitoring without extra adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this assembly fit my Holley Dominator 4150 with 7\/8\"-20 threads?\u003c\/h3\u003e\n\u003cp\u003eYes—the fittings are sized for Holley Dominator\/4150 Series carbs using the 7\/8\"-20 thread standard. The kit includes a supplemental connector so you can adapt orientation or extend reach for neat routing around manifolds and brackets.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-machined 7\/8\"-20 female\/male fitment for direct carb attachment\u003c\/li\u003e\n  \u003cli\u003eExtra connector for flexible hose positioning and easier installation\u003c\/li\u003e\n  \u003cli\u003eCompact profile works with tight engine-bay layouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction features keep this line leak-resistant and durable?\u003c\/h3\u003e\n\u003cp\u003eThe hose uses a multi-layer construction—rubber inner liner, nylon reinforcement, and a stainless-steel outer braid—that resists fuel permeation, kinking, and external damage. Fittings are high-grade aluminum to provide corrosion resistance and consistent thread sealing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless-steel braid for mechanical protection and heat resistance\u003c\/li\u003e\n  \u003cli\u003eRubber and nylon inner layers for pressure tolerance and flexibility\u003c\/li\u003e\n  \u003cli\u003eAluminum alloy fittings reduce corrosion and maintain a secure seal\u003c\/li\u003e\n  \u003cli\u003eDecorative blue-dot finish for visible routing and cleaner appearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This braided AN6 dual-feed fuel line is intended for classic- and performance-car owners, engine builders, and DIY mechanics upgrading fuel plumbing on Holley 4150\/Dominator carburetors. Choose it if you want improved durability, leak-resistant connections, tidy under-hood presentation, and an easy way to add a vacuum\/pressure gauge without extra adapters. It’s suited for street, strip, and show vehicles where reliable dual-feed delivery and professional fitment matter.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this fit Holley Dominator 4150 with 7\/8\"-20 threads?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The fittings are made for 7\/8\"-20 Holley Dominator\/4150 carburetor threads for direct attachment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the vacuum port for a gauge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The assembly includes a vacuum\/pressure port designed for connecting a gauge without separate adapters.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"WnSEu","offers":[{"title":"Default Title","offer_id":48086705668254,"sku":"B0CC23VTF1","price":51.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/wnseu-front-assembly-holley-4150.jpg?v=1785902240","url":"https:\/\/northtrailauto.ca\/products\/wnseu-braided-an6-dual-feed-carb-fuel-line-for-holley-4150-dominator-7-8-20-stainless-braid-vacuum-port","provider":"North Trail Auto","version":"1.0","type":"link"}